diff --git a/parts/1-packages.tex b/parts/1-packages.tex
index e373303..55cf18b 100644
--- a/parts/1-packages.tex
+++ b/parts/1-packages.tex
@@ -11,6 +11,7 @@
 \usepackage{float} % Allow floats in multicol environments
 \usepackage{tcolorbox}
 \usepackage{fancyvrb}
+\usepackage{fvextra}
 \usepackage{sim-os-menus}
 %\usepackage{etoolbox}
 \usepackage[splitindex]{imakeidx}